Update test_sampling_params_e2e.py

Signed-off-by: vincent-4 <vincentzhongy+githubvincent4@gmail.com>

Author: vincent-4

tests/v1/sample/test_sampling_params_e2e.py

@@ -24,15 +24,6 @@ def test_n_gt_1(model):
     outputs = model.generate(PROMPT, params)
     assert len(outputs[0].outputs) == 3
 
-
-def test_best_of(model):
-    """Raise a ValueError since best_of is deprecated."""
-
-    params = SamplingParams(n=2, best_of=3)
-    with pytest.raises(ValueError):
-        _ = model.generate(PROMPT, params)
-
-
 def test_penalties(model):
     """Check that we do not get errors if applied."""